/Engine/Source/Editor/GameProjectGeneration/Public/GameProjectUtils.h
Returns the contents of the specified template file
static bool ReadTemplateFile ( const [FString](API\Runtime\Core\Containers\FString) & TemplateFileName, [FString](API\Runtime\Core\Containers\FString) & OutFileContents, [FText](API\Runtime\Core\Internationalization\FText) & OutFailReason )